Year of the Comet
Comet C/2011 L4 (PANSTARRS)

PANSTARRS information

Comet C/2012 S1 (ISON)

ISON information

Stephen James O'Meara's Secret Sky

Stephen James O'Meara's Secret Sky: A mirror image

January 2009: Did William Herschel's mind play tricks on him when he observed Uranus?
Contributed by Stephen James O'Meara
Published: November 24, 2008
This month, we'll investigate some more of Herschel's intriguing ring observations, as well as how the observer's mind may have affected what he saw, or expected to see.

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